A meme going around Facebook asks "Who can still remember their childhood telephone number?". Predictably, people are posting their old numbers in the comments. There's no such thing as a "security" question when people are this gullible. If only people realized that half of the dumb things they share in response to these social-media memes are extremely useful to the types of bad actors who would use their personal information against them. It's bad enough already that it takes virtually no effort at all to crack certain "security" questions like "What was your mother's maiden name?".